00326nam a2200109Ia 4500008004100000040003800041100001700079245004100096260003200137300001200169653003500181211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aLock, Muriel 0aReference materials for young people  bClive BingleyaLondonc1968  a189p p.  aYoung People's Reference books